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mounting a fan on a heatsink

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dbuttcheek69

Senior member
i recently bought a heatpipe cooler and for some reason its working worse than my stock intel fan and heatsink. its a t pipe 101 and i got a 2.4

whats the best way to mount a fan onto a heatsink? should i have it blowing down onto the heatsink or have it sucking air away from it?

and can anyone who knows a bunch about heatpipe coolers tell me about this problem?
does it like take a while to start workin good or sumtn?
thanks alot
 
It's not a simple yes/no answer - depends on the heatsink/fan combo.

*Usually* blowing down cools better, but if it's not too difficult to turn the fan over, I would recommend trying both orientations to see which works best.
 
Almost always, it is better to have a fan blow ONTO the heatsink. Turbulance is far greater when air is directed onto the surface. This is why nearly all HSF makers produce, or suggest, fans set this way.
 
Think about it this way. When you want to cool off, and don't have the luxury of iced tea or lemonade, you venture in front of a fan. Does said fan blow air onto or suck air away from you? ;-)
 
Normally fan is blowing down onto the heatsink, but you can always do as Dethfrumbelo said, test blow in and suck out performance before apply the better way.

btw, you'll be happy if you able to choose a quiet fan (~20dB) for your heatsink. 🙂
 
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